graphics.py 文件源码

def to_numeric(self,columns):
        '''
        Args
            columns (string or list):
                column names needed to be converted
        Returns
            -
        '''
        if isinstance(columns,str):
            self.data_df[columns] = pd.to_numeric(self.data_df[columns],errors='coerce')
        elif isinstance(columns,list):
            for column in columns:
                self.data_df[column] = pd.to_numeric(self.data_df[column],errors='coerce')

    # rename certain columns